linux-kernel - Re: [GIT PULL] perf fixes

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Message-ID: <20110124201736.GA12038@elte.hu>
Date:	Mon, 24 Jan 2011 21:17:36 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Frédéric Weisbecker <fweisbec@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [GIT PULL] perf fixes


* Ingo Molnar <mingo@...e.hu> wrote:

> 
> * Ingo Molnar <mingo@...e.hu> wrote:
> 
> > The distro version on that box you are using would be helpful, plus the build 
> > output you get when you build 'tools/perf'. (I.e. which libraries are there. If it 
> > comes up empty with no complaints you have all the devel libraries.)
> 
> and a gdb backtrace of the perf report lockup site would be helpful too i suspect.

There's two areas that would be prime suspects: the ELF symbol lookup code, or the 
call-chain code.

Neither is expected to lock up, on arbitrary input of perf.data.

Thanks,

	Ingo
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